Topic Area by Cheslyn Grade 8

Organize these properties into the right categories

Groups:

(a) Square

,

(b) Rectangle

,

(c) Circle

,

(d) Triangle

• 
• 
• All sides and angles equal

• Radius is half the diameter

• All sides and angles may be different but add up to 180 degrees

• 
• 
• Opposite sides are equal.

Area refers to the ​ (a)   taken up by a ​ (b)   ​ shape on a 2D plane.

• space
• Aliens
• place
• flat
• huge
• fat

Label the diagram of the circle.

a

b

c

Circumference

Centre

Radius

A cruise ship has a large, circular window. It has a diameter of 8 meters. What is the window's area?

• 31.25 m²

• 29.55 m²

• 30.36 m²

• 50.24 m²

Match the following

• A = 9 m²

• Square with sides 1m each

• A = 1m²

• Square with sides equal 2m each

• A = 4m²

• Square with sides equal to 3m

Determine the area of the Rectangle above in cm².

type in only the answer.

Mathematical Equivalence

ON

The area of a Triangle is 10 m². Draw the triangle and give proper dimensions.

The triangle does not need to be drawn to scale.